/Engine/Source/Runtime/SlateRHIRenderer/Public/Interfaces/ISlate3DRenderer.h
Renders the batched draw elements of the draw buffer to the given render target. Call after preparing the draw buffer and render target on the game thread.
void DrawWindowToTarget_RenderThread ( [FRHICommandListImmediate](API\Runtime\RHI\FRHICommandListImmediate) & RHICmdList, const struct [FRenderThreadUpdateContext](API\Runtime\SlateCore\Rendering\FRenderThreadUpdateContext) & Context )